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Texas Instruments THS4051MFKB
- Part No.:
- THS4051MFKB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 20-CLCC
- Datasheet:
-
THS4051MFKB.pdf
- Description:
- 70-MHZ HIGH-SPEED AMPLIFIER 20-L
- Quantity:
- Payment:
- Shipping:
Inventory:2,824
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Product details
Overview
THS4051MFKB from Texas Instruments is a single-channel, high-speed voltage-feedback operational amplifier optimized for professional video, imaging, and communication signal conditioning. It delivers 70 MHz small-signal bandwidth (G = 1), 240 V/µs slew rate, 60 ns settling time (0.1%), ±13 V output swing into 1 kΩ at ±15 V supply, and 0.01% differential gain error - enabling precision analog front-end design in broadcast-grade video reconstruction circuits.
For engineers reviewing the THS4051MFKB datasheet, THS4051MFKB pinout, THS4051MFKB application, or THS4051MFKB equivalent, this device is selected for demanding wideband analog signal paths requiring low distortion (−89 dBc THD at 1 MHz, RL = 1 kΩ), stable unity-gain operation, and robust drive capability (100 mA typical) across −55°C to +125°C industrial/military temperature range.
Technical Context
The THS4051MFKB employs a dielectrically isolated complementary bipolar process with GHz fT transistors, enabling voltage-feedback architecture with inherently high slew rate and wide bandwidth. Its internal compensation ensures stability at all gains in both inverting and non-inverting configurations without external compensation.
Designed for driving heavy loads, it maintains 0.1 dB flatness to 30 MHz and achieves <0.01° differential phase error under NTSC 40 IRE modulation - critical for composite video signal integrity. The FK package integrates PowerPAD™ thermal enhancement for reliable operation at up to 1375 mW power dissipation (TA = 25°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-signal BW (−3 dB) | 70 MHz at G = 1, ±15 V - supports full HD baseband video bandwidth without attenuation |
| Slew rate | 240 V/µs - enables clean 20-V step response within 60 ns, avoiding slewing-induced distortion |
| THD | −89 dBc at 1 MHz, RL = 1 kΩ - meets broadcast video spectral purity requirements |
| Differential gain/phase | 0.01% / 0.01° at ±15 V - preserves color fidelity in NTSC video reconstruction |
| Operating temp range | −55°C to +125°C (M-suffix) - qualified for aerospace, defense, and harsh-environment industrial use |
| Supply voltage | ±4.5 V to ±16.5 V dual or 9–33 V single - supports legacy ±15 V systems and modern low-voltage designs |
| Output current | 100 mA typical - drives multiple 75-Ω video lines or ADC input buffers directly |
Pinout & Package
THS4051MFKB is housed in an 8-pin ceramic chip carrier (FK) package with exposed thermal pad (PowerPAD™). The package provides low θJA = 87.7°C/W and θJC = 20°C/W, enabling high-power operation with minimal junction temperature rise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NC | No internal connection - must be left floating or grounded per layout best practices |
| 2 | VCC+ | Positive supply terminal - decoupling capacitor required within 1 cm for stability |
| 3 | NC | No internal connection - no routing or soldering required |
| 4 | OUT | Amplifier output - capable of ±13.6 V swing into 1 kΩ; series resistor recommended for >10 pF capacitive loads |
| 5 | NC | No internal connection - electrically isolated from die |
| 6 | NC | No internal connection - no functional role |
| 7 | IN− | Inverting input - high-impedance node; matched trace length advised when used in differential pairs |
| 8 | IN+ | Non-inverting input - common-mode range extends to ±14.3 V at ±15 V supply |
Key Features
| Feature | Design Value |
|---|---|
| Stable at all gains | Unity-gain stable without external compensation - eliminates risk of oscillation in gain-of-1 video line drivers |
| Low distortion | −89 dBc THD at 1 MHz into 1 kΩ - preserves signal integrity in RF sampling and IF chain applications |
| Wide 0.1-dB flatness | 30 MHz bandwidth - ensures amplitude accuracy across entire NTSC/PAL luminance spectrum |
| High output drive | 100 mA continuous - eliminates need for external buffer stages when driving multiple video loads |
| Extended temperature range | −55°C to +125°C operation - validated for MIL-PRF-38535 Class K and space-grade derating |
Applications
| Broadcast Video Reconstruction | Medical Imaging Signal Chain |
|---|---|
|
Use Scenario: Reconstructing composite NTSC video signals after digital-to-analog conversion in studio equipment. IC Role / Device Role / Timing Role: Final-stage video driver amplifying DAC output to 1 VPP into 75-Ω coaxial cable. Use Value: 0.01% differential gain and 0.01° phase error preserve color saturation and hue accuracy across full 4.2 MHz luminance band. |
Use Scenario: Driving high-resolution CCD/CMOS sensor outputs in portable ultrasound machines. IC Role / Device Role / Timing Role: Low-noise, wideband gain stage preceding 14-bit ADC sampling at 40 MSPS. Use Value: 14 nV/√Hz input voltage noise and 70 MHz bandwidth maintain SNR >72 dB over sensor's dynamic range. |
| Test & Measurement Front-End | Military Radar IF Amplification |
|
Use Scenario: Signal conditioning in high-speed oscilloscope vertical amplifiers and arbitrary waveform generator outputs. IC Role / Device Role / Timing Role: Precision gain block delivering fast settling (<60 ns) and minimal overshoot for pulse fidelity. Use Value: 240 V/µs slew rate and 60 ns 0.1% settling enable accurate reproduction of sub-10 ns rise-time pulses. |
Use Scenario: Intermediate frequency (IF) amplification in airborne radar receivers operating in −40°C to +85°C ambient. IC Role / Device Role / Timing Role: Wideband IF gain stage amplifying 10–100 MHz signals before quadrature demodulation. Use Value: −82 dBc THD at 1 MHz and 70 MHz bandwidth support high-fidelity pulse-Doppler processing with minimal spurious generation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4031IDGN | 100 MHz bandwidth, 100 V/µs slew rate, lower power (6.5 mA), no M-temp grade | Optimized for low-noise instrumentation; insufficient slew for 20-V video swings | Select THS4031IDGN only when bandwidth >70 MHz is required and slew rate <200 V/µs is acceptable |
| THS4081IDGN | 175 MHz bandwidth, 360 V/µs slew rate, 12 mA supply current, same M-temp not available | Higher speed but higher distortion (−76 dBc THD at 1 MHz); less suitable for video fidelity | Choose THS4081IDGN for RF/IF applications where speed outweighs harmonic purity requirements |
Compared with THS4031IDGN and THS4081IDGN, THS4051MFKB uniquely balances video-grade distortion performance, military-grade temperature range, and proven stability in unity-gain video line drivers - making it irreplaceable in broadcast infrastructure where color fidelity and reliability are non-negotiable.
Availability
THS4051MFKB is available at Aetrix Electronics and suitable for broadcast video reconstruction, medical imaging signal chains, test & measurement front-ends, and military radar IF amplification requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for THS4051MFKB includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies with over 90 years of innovation in high-performance analog ICs.
The THS405x product line was engineered specifically for wideband analog signal conditioning in professional video, imaging, and communications systems - prioritizing distortion performance, thermal robustness, and gain stability over raw speed alone.
FAQ
What is the maximum operating temperature range for THS4051MFKB?
The THS4051MFKB is rated for operation from −55°C to +125°C, as indicated by its 'M' suffix. This extended temperature range is validated per TI's military-grade qualification standards and supports deployment in aerospace, defense, and industrial control environments where ambient conditions exceed commercial limits. The FK package's PowerPAD™ thermal structure ensures reliable junction temperature control under full-load conditions across this range.
Does THS4051MFKB require external compensation for unity-gain stability?
No, THS4051MFKB is internally compensated and unity-gain stable in both inverting and non-inverting configurations without external components. This is confirmed in the device description and functional specifications, eliminating risk of oscillation in video line driver or buffer applications. Layout best practices - including short traces, local bypass capacitors on VCC+ and VCC−, and proper grounding - remain essential for maintaining stability at high frequencies.
What is the differential phase error specification for THS4051MFKB at ±5 V supply?
At ±5 V supply and 40 IRE NTSC modulation, THS4051MFKB exhibits a differential phase error of 0.03°, as specified in the Electrical Characteristics table on page 7 of the SLOS238D datasheet. This value is measured under full-range temperature conditions (−55°C to +125°C) and confirms the device's suitability for portable or low-voltage video systems where power efficiency is critical without sacrificing color timing accuracy.
Can THS4051MFKB drive a 75-Ω coaxial cable directly?
Yes, THS4051MFKB can drive a 75-Ω load directly, delivering ±3.5 V output swing at ±5 V supply and ±13.6 V at ±15 V supply into 1 kΩ - sufficient headroom for standard 1 VPP video levels. For optimal impedance matching and reduced reflections, a series 75-Ω resistor is recommended at the output, especially in longer cable runs. The 100 mA output current rating ensures stable operation even with multiple parallel 75-Ω terminations.
What is the THD performance of THS4051MFKB at 10 MHz?
While THD is explicitly characterized at 1 MHz (−82 dBc into 150 Ω, −89 dBc into 1 kΩ), the THS4051MFKB datasheet does not provide a guaranteed THD value at 10 MHz. However, Figure 14 shows THD degrading to approximately −55 dBc at 10 MHz under identical test conditions (VCC = ±15 V, G = 2, VO(PP) = 2 V, RL = 150 Ω). Designers requiring <−70 dBc THD above 5 MHz should verify performance in their specific circuit configuration and consider THS4081 for higher-frequency low-distortion needs.
THS4051MFKB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 20-CLCC
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- Push-Pull
- Slew Rate:
- 240V/µs
- Gain Bandwidth Product:
- 70 MHz
- -3db Bandwidth:
- 38 MHz
- Current - Input Bias:
- 2.5 µA
- Voltage - Input Offset:
- 2.5 mV
- Current - Supply:
- 8.5mA
- Current - Output / Channel:
- 100 mA
- Voltage - Supply Span (Min):
- 9 V
- Voltage - Supply Span (Max):
- 32 V
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-LCCC (8.89x8.89)
THS4051MFKB FAQ
1.How can I place an order for THS4051MFKB through Aetrix?
Please submit a Request for Quotation (RFQ) for THS4051MFKB on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for THS4051MFKB reliable?
The price and inventory of THS4051MFKB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for THS4051MFKB is usually 5 days.
3.What payment methods are accepted for THS4051MFKB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for THS4051MFKB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for THS4051MFKB?
THS4051MFKB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your THS4051MFKB order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for THS4051MFKB?
For technical support, including THS4051MFKB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your THS4051MFKB requirements.
6.How does Aetrix verify that THS4051MFKB is sourced from the original manufacturer or authorized distributors?
All THS4051MFKB products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that THS4051MFKB meets industry standards.
7.What is the process for return or replacement of THS4051MFKB?
All THS4051MFKB units undergo pre-shipment inspection (PSI). If there is an issue with THS4051MFKB, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The THS4051MFKB part is unused and in its original packaging.
Return procedure for THS4051MFKB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
THS4051MFKB Tags
-
LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
Texas Instruments
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LM2904DGKR
Texas Instruments
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LM324DR
Texas Instruments
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
Microchip Technology
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LM324PWR
Texas Instruments
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LM2902PWR
Texas Instruments
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LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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